code: def tearDown(self) -> None:
      dist.destroy_process_group()
  
file_path: torchrec/torchrec/distributed/composable/tests/test_fused_optim.py
imports: import os
  import unittest
  import torch
  from torch import distributed
  from torch.distributed.optim import _apply_optimizer_in_backward
  from torchrec.distributed.shard import shard
  from torchrec.distributed.sharding_plan import apply_to_all, construct_module_sharding_plan, table_wise
  from torchrec.modules.embedding_configs import EmbeddingBagConfig
  from torchrec.modules.embedding_modules import EmbeddingBagCollection
  from torchrec.optim.rowwise_adagrad import RowWiseAdagrad
  from torchrec.optim.warmup import WarmupOptimizer, WarmupPolicy, WarmupStage
  from torchrec.test_utils import get_free_port
label_desc: Use image node_id 2 for calling the TestFusedOptim obj's underlying member method code with example usage: obj.tearDown() without return types